(19)
(11) EP 4 041 789 A1

(12)

(43) Date of publication:
17.08.2022 Bulletin 2022/33

(21) Application number: 20781025.0

(22) Date of filing: 02.10.2020
(51) International Patent Classification (IPC): 
C08G 18/02(2006.01)
C08G 18/24(2006.01)
 C08G 18/22(2006.01)
C08G 18/79(2006.01)
(52) Cooperative Patent Classification (CPC):
C08G 18/225; C08G 18/222; C08G 18/24; C08G 18/792; C08G 18/022; C08G 18/025; C08G 18/027
(86) International application number:
PCT/EP2020/077758
(87) International publication number:
WO 2021/069335 (15.04.2021 Gazette 2021/15)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 07.10.2019 EP 19201636

(71) Applicant: Covestro Intellectual Property GmbH & Co. KG
51373 Leverkusen (DE)

(72) Inventors:
  • DRIEST, Piet
    3818CN Amersfoort (NL)
  • ACHTEN, Dirk
    51375 Leverkusen (DE)
  • MEISENHEIMER, Richard, Daniel, Matthias
    51065 Köln (DE)
  • KLEINSCHMIDT, Denise
    52062 Aachen (DE)

(74) Representative: Levpat 
c/o Covestro AG Gebäude K12
51365 Leverkusen
51365 Leverkusen (DE)

   


(54) STORAGE-STABLE THERMOLATENT CATALYSTS FOR THE POLYMERIZATION OF ISOCYANATES